The selection and application of gear pumps and motors for fire-resistant fluids

CIM Bulletin, Vol. 73, No. 823, 1980

T.P. KOSTEK, Chief Development Engineer, Gear Pumps & Motors, Commercial Shearing Inc., Youngstown, Ohio

Historically, gear pumps and motors have been popular in the mining industry because of their competitive cost, simple yet rugged construction, ease of rebuild, and relative long life and insensitivity to contamination. However, with the ever increasing "popularity" of fire-resistant hydraulic fluids, both users and manufacturers of gear equipment must make special considerations to enable the equipment to continue giving satisfactory performance even with the water-containing fluids.The paper discusses 60-40 invert emulsions and water-glycols.
Keywords: Equipment, Maintenance, Gear pumps, Motors, Fluids, Fiie-resistant fluids, Emulsions, Water glycols, Lubrication.